Improved colored noise handling in Kalman Filter-based speech enhancement algorithms
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Bibliographic record
Abstract
This paper presents a simple alternative to the traditional handling of autoregressive colored observation noise processes in Kalman filter-based speech enhancement algorithms. The method is entirely centered on a rewriting of the state-space equations describing the problem. The proposed approach decreases the dimension of the state vector and the amount of computations per iteration, and also naturally reduces to the white noise case when a zero-order autoregressive colored noise is chosen. In addition, from the multiple experiments conducted using several Kalman filter-based algorithms, it is found that the quality obtained with the new method, as measured by different speech quality measures, is equivalent and in some cases better. The simulations presented are based on both computer-generated and real-world colored noises, in stationary and nonstationary cases.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it